2D/0D graphene hybrids for visible-blind flexible UV photodetectors

Tetsuka, Hiroyuki

doi:10.1038/s41598-017-05981-y

Cited by 43 publications

(34 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tetsuka created a hybridized UV flexible photodetector based on these QDs (≈5 nm diameter) and a graphene monolayer. [93] The QDs hybridization with graphene helped to reduce the unintentional doping of graphene present in GFET, switching the Dirac point from 23.5 to 4.2 V. Furthermore, the architecture photoresponse was recordbreaking, reaching a responsivity of 1.5 × 10 4 A W −1 and detectivity of 5.5 × 10 11 . Comparing to previous architectures based in PbS QDs-Ag NCs that have only reached detectivity of 1.5 × 10 10 and a few mA W −1 of responsivity, [12] this architecture shows an improvement of more than one order of magnitude.…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

“…Dimethylamine‐functionalized graphene QDs (NMe 2 ‐GQDs) show a large bandgap of 3.3 eV enabling UV photodetection with a cutoff frequency of ≈430 nm. Tetsuka created a hybridized UV flexible photodetector based on these QDs (≈5 nm diameter) and a graphene monolayer . The QDs hybridization with graphene helped to reduce the unintentional doping of graphene present in GFET, switching the Dirac point from 23.5 to 4.2 V. Furthermore, the architecture photoresponse was record‐breaking, reaching a responsivity of 1.5 × 10 4 A W −1 and detectivity of 5.5 × 10 11 .…”

Section: Progress Of 2d Materials Flexible Photodetectors Architecturesmentioning

confidence: 99%

“…Flame sensing was also demonstrated by Tetsuka that used a flexible photodetector NMe 2 ‐GQDs with graphene as shown in Figure d (architecture explained in Section ) . Figure e shows the flame detector prototype mounted on a front panel consisting of “nanoblocks,” in combination with an open‐source Arduino Uno signal processor (Figure f).…”

Section: Sensor Integration and Applicationsmentioning

confidence: 99%

“…To overcome this challenge, researchers combined graphene with high EQE nano-sctructured semiconductors such as lead iodide perovskite, [90] ZnO nanorods (NRs), [91] Cu 3−x P NCs, [92] NMe 2 -GQDs. [93] Self-doped colloidal copper phosphide (Cu 3−x P) NCs have been shown to exhibit localized surface plasmon resonance [94] and ultrafast carrier relaxation time. [95] Based on this, Sun et al fabricated a fully covered Cu 3−x P NCs flexible photodetector, [92] showing a responsivity of 5.81 A W −1 .…”

Section: Graphene Familymentioning

confidence: 99%

See 3 more Smart Citations

Flexible Photodetector Based on 2D Materials: Processing, Architectures, and Applications

Dong

Simões

Yang

2020

Adv Materials Inter

148

111

View full text Add to dashboard Cite

Flexible photodetectors have emerged during the past few years for applications in healthcare, security, and environmental monitoring. Recently, 2D materials have started being implemented as functional layers in flexible photodetector due to their outstanding optoelectronic characteristics paired with high mechanical flexibility. In this work, the authors analyze the progress of 2D material‐based flexible photodetectors architectures, with a focus on graphene family, (Di)chalcogenides and van der Waals heterostructures. The optical and mechanical characteristics of 2D materials flexible photodetectors are systematically analyzed. Furthermore, the processing techniques compatible with flexible substrates and proof‐of‐concept sensors integrating 2D material flexible photodetectors are also reviewed. In the last section, the remaining challenges and future perspectives are discussed, envisioning to support future developments in the field.

show abstract

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

Section: Progress Of 2d Materials Flexible Photodetectors Architecturesmentioning

confidence: 99%

Section: Sensor Integration and Applicationsmentioning

confidence: 99%

Section: Graphene Familymentioning

confidence: 99%

See 2 more Smart Citations

Flexible Photodetector Based on 2D Materials: Processing, Architectures, and Applications

Dong

Simões

Yang

2020

Adv Materials Inter

148

111

View full text Add to dashboard Cite

show abstract

“…It has a good application prospect in the fields of LEDs, PDs, and flexible electronics. [133][134][135][136] In addition, the formation of heterogeneous structures and devices between QDs and other 1D or 2D materials is also one of the research hotspots 125,[137][138][139] ; for example, graphene/Cu 2 O QDs PDs. 140 In order to make the device with higher responsive, Cu 2 O QDs are introduced on the basis of graphene.…”

Section: D Materialsmentioning

confidence: 99%

Recent advances in low‐dimensional semiconductor nanomaterials and their applications in high‐performance photodetectors

Fang

Zhou

Xiao

et al. 2019

InfoMat

130

View full text Add to dashboard Cite

Low‐dimensional (including two‐dimensional [2D], one‐dimensional [1D], and zero‐dimensional [0D]) semiconductor materials have great potential in electronic/optoelectronic applications due to their unique structure and characteristics. Many 2D (such as transition metal dichalcogenides and black phosphorus) and 1D (such as NWs) materials have demonstrated superior performance in field effect transistors, photodetectors (PDs), and some flexible devices. And in some hybrid structures of 0D materials and 1D or 2D materials, the modification of 1D and 2D devices by 0D materials is embodied. This type of hybrid heterostructure has a larger performance optimization compared with the original. In the application of PDs, the variety of low‐dimensional materials and properties enable wide‐spectrum detection from ultraviolet UV to infrared, which provide a potential option for PDs under various conditions. For flexible electronic devices, high performance and mechanical stability are two important features. Low‐dimensional materials offer unparalleled advantages in flexible devices. In this review, we will focus on the various low‐dimensional materials that have been extensively studied and their applications in the electronics/optoelectronic and flexible electronics. From the composition and lattice structure of materials (including alloys) to the construction of various devices and heterostructures, we will introduce their application and recent development under various conditions. These works can provide valuable guidance for the construction and application of more high‐performance and multifunctional devices.

show abstract

The Interaction between Quantum Dots and Graphene: The Applications in Graphene‐Based Solar Cells and Photodetectors

Feng

et al. 2018

Adv Funct Materials

View full text Add to dashboard Cite

Graphene with a series of neoteric electronic and optical properties is an intriguing building block for optoelectronic devices. Over the past decade, graphene‐based solar cells (SCs) and photodetectors (PDs) which can convert light signals to electrical signals have received burgeoning exploration. However, limited light absorption hampers the performance of these devices. Quantum dots (QDs) possess a strong confinement effect, a large exciton energy, and long exciton lifetime, enhancing the interaction between incident light and graphene. Especially, as the density of states near the Dirac point of graphene is ultralow, it is easy to modify the Fermi level of graphene by inserting quantum dots at the interface between graphene and light, thereby enhancing the performance of graphene‐based optoelectronic devices. The characteristics of QDs and crucial physical mechanisms of the interaction and energy transfer in QDs/graphene nanohybrids are systematically addressed. The factors influencing the efficiency of energy transfer are also analyzed quantitatively. Moreover, the experimental process of QD‐enhanced technologies for SCs, photoconductors, phototransistors, and photodiode PDs is reviewed. Eventually, a conclusion is given and the remaining challenges and future development for QDs/2D materials hybrid systems is discussed. Possible steps toward large‐scale commercial applications and integration into optoelectronic networks are suggested.

show abstract

2D/0D graphene hybrids for visible-blind flexible UV photodetectors

Cited by 43 publications

References 37 publications

Flexible Photodetector Based on 2D Materials: Processing, Architectures, and Applications

Flexible Photodetector Based on 2D Materials: Processing, Architectures, and Applications

Recent advances in low‐dimensional semiconductor nanomaterials and their applications in high‐performance photodetectors

The Interaction between Quantum Dots and Graphene: The Applications in Graphene‐Based Solar Cells and Photodetectors

Contact Info

Product

Resources

About